SAN DIEGO  –  John Cena says undergoing two hair transplants has “totally changed” his life.  The 49-year-old actor and former WWE star opened up about his hair restoration journey while attending San Diego Comic-Con. “The objective is to get more hair, and this was the best way to do it,” Cena told People, praising his doctor, Ken Anderson. “He’s totally changed my life.” Cena revealed he returned for a second procedure 15 months after his first surgery to fill a small remaining spot. He said shaving his head helped improve the results because it allowed doctors to transplant hair follicles more efficiently. “My first operation was 13 and a half hours. The second one was eight hours,” he said, calling Anderson “a master.”  Cena said he fully trusts the process and is confident the treatment is working. The actor previously shared that he underwent his second follicular unit extraction (FUE) procedure in June after first having the surgery in November 2024. He has also spoken openly about deciding to seek treatment after WWE fans repeatedly pointed out his thinning hair. “I saw their signs that said, ‘The bald John Cena,’” he previously told People. “They pushed me into seeing what my options were.”  Cena said he now follows a hair care routine that includes red-light therapy, minoxidil, vitamins, shampoo, conditioner and hair transplant surgery.  Looking back, he admitted he has one regret. “I hate the fact that if there wasn’t so much shame around it, I’d have gotten it done 10 years ago,” he said.